The trajectories of particle movements in a standing wave acoustic field are recorded by fast-speed video camera.

采用可视化实验的方法，拍摄可吸入颗粒在驻波声场中的运动轨迹。

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It establishes a planar wave acoustic passive localization model, and designs the general structure of the position system using simple passive acoustic sensor arrays.

建立了一种平面波声被动定位模型，利用简易被动声传感器阵列，分析并设计了定位系统的总体结构。

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But being based outside London's music industry gives him a different perspective on the current wave of acoustic troubadours.

BBC: What is it about sensitive boys with guitars?

Microsoft, for example, has been developing software that takes advantage of the different times an acoustic wave arrives at each microphone in an array around the screen of a computer.

ECONOMIST: Noise-cancelling technology

Our final host is Tiffany Shlain, filmmaker and founder of the Webby Awards, whose first hidden treasure is the Wave Organ, a wave-activated acoustic sculpture located on a jetty in the San Francisco Bay.

BBC: The Real San Francisco